76 citations · 512 across the 33 of their papers we have counts for
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cs.DB2018★ 15 cited
Dichotomies in Ontology-Mediated Querying with the Guarded Fragment
Andre Hernich, Carsten Lutz, Fabio Papacchini +1
We study the complexity of ontology-mediated querying when ontologies are formulated in the guarded fragment of first-order logic (GF). Our general aim is to classify the data comp…
cs.DB2013★ 55 cited
Ontology-based Data Access: A Study through Disjunctive Datalog, CSP, and MMSNP
Meghyn Bienvenu, Balder ten Cate, Carsten Lutz +1
Ontology-based data access is concerned with querying incomplete data sources in the presence of domain-specific knowledge provided by an ontology. A central notion in this setting…